Pump.



M. LANG.

PUMP.

APPLIQATION FILED sBPT.27, 1912.

Patented Oct. 14, 1913.

Inventor Witnesses .Attorneys naar. LANG', or Tarn, CALIFORNIA.

PUMP.

Specilcation of Letters Patent.

Application filed September 27, 1912. Serial No. 722,746.

To ali whom 15 may concern.'

Beit known that I, MARK LANG, a citizen of the United States, residing at rl`aft, 1n the county of Kern and have invented a new and useful Pump, o' which the following is a specification.

The present invention relates to improvements in umps, the primary object of the invention eingthe provision of a pump especially adapted for use in oil wells, and is provided with a novel form of liner sleeve in which is mounted the plunger, the lower standing valve being so disposed with relation to the plunger, as to be readily removed from the tubing or casing with the plunger, by means of sucker rods, thus providing a means whereby the internal mechanism of the pump is readily reached for repairs and renewal.

A further object of the present invention is the provision of an oil well pump, in which a liner is inserted within the plunger carrying barrel thereof from the upper end of the tubing, the same being held in downward po-sition by means of a plurality of spring locks, said' locks being. disposed in the path of to be engaged by the plunger when the plunger is lifted to its extreme up position, such up position being above the normall stroke movement of the plunger, thus providing a means whereby the plunger willy release the liner which carries therewith the lower standing valve as well as the plunger valve, by means of pulling the sucker rods, thus permitting the ready removability of the pumping mechanism for repair and renewal.l

With the foregoing and other .objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement ofv parts and in the details of construct-ion hereinafter described. and claimed, it being understood that changes in the precise embodiment of the invention herein-disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings-Figure 1 is alongitudinal sectional view through the valve portion adjacentl to the standing valve and the plunger. Fig. 2 is a section taken on line 2-2 of Fig. 1. Fig. 3 is a section taken on line 3-3,of Fig. 1. Fig. 4 is a section taken-v on line 4-4 of Fig. 1. Fig. 5 is a section taken on line 5-5 of Fig. 1. Fig. 6 is section taken on line 6-6 of Fig. 1.

State of California Referring to the drawings, the numerals 1 and 1 designate respectively the up r and lower ends of the tubing between w ich is connected the liner and plunger carrying member of the pump. The upper portion or nipple 3 is connected to the lower end of the tubing 1 by means of the collar or coupling sleeve 4, while the lower section 5 of the nipple is connected to the lower endy of the nipple 3 by means of the collar or coupling 6, with the interposed packing ring 7 disposed between the ends of the nipples 3 and 5.

Disposed within the nipple 5 below the packing ring 7 is a exible packing sleeve 8, and secured to the lower end of the nipple 5 is the cylindrical barrel 9, said barrel 9 being connected to the lower end of the nipple 5 by the sleeve 10. The coupling 11 is connected exteriorly of the lower end lof the' barrel 9 and forms the connection between it and the upper end of the tubing 1.

Slidably mounted concentrically of and within the nipples 3 and 5, the same being passed through the packing ring 7 land the rubber packing sleeve 8, with its lower end fitting snugly within the barrel 9 is the liner sleeve 12, the same being made up of one or a plurality of sections, said sections being connected together by means of the threaded joints 13 which are formed of male and `female threaded ends that do not affect the diameter of the liner sleeve, either interiorly or exteriorlythereof. The lower end of the liner sleeve 12 is beveled as at 14 to fit within the conical seat 15'of the coupling 11. In order that the barrel 9 may be properly locked against trotation relatively to the coupling 11, the locking device 16 is employed and has its respective ends connected to the barrel 9 and coupling 11.

Mounted for sliding movement, but normally'seating firmly within the lower end of the liner sleeve 12 is the standing valve 17, whose garbutt rod 20 is mounted slidably or concentrically through the lower plunger nut 19 of the cylindrical sleeve plunger 18, said plunger 18 being slidably mounted within the barrel 9. Carried upon the upper end of the rod 20 is a knob or button 21 4which provides a means whereby when the plunger 18 1s lifted for removal, it carries therewith the standingA valve 17 through the medium of the engagement of the knob or button 21 with the lower nut 19 of the plunger 18. Connected in the upper end Patentedct. 14,1913. y

. 18 is properly reciprocatedand normally in lsleeve against upward movement.

Lorente upwardly through the lifter nut 26 which is connected in the upper end of the liner sleeve 12. rlhe upper end of the rod 25 is connected to the drive nut 27, which forms a coupling between said rod 25 and the actuating or sucker rod 28. By this means' the plunger its reciprocation does not exceed the dot-anddash line position Fig. 1.

In order to lock the liner` sleeve against upward movement during the reciprocation of the plunger 18, the diametrically disposed spring catches 30 have their lower ends connected at 29 to the nipple 3, with their free trigger ends 31 disposed within the slots 32 of the liner sleeve 12. rIhus it will be seen that the catches 30 will lock the liner Should it be desired to remove t-he liner sleeve 12 and the plunger 18, as well as the standing valve 17 from the barrel 9, the nipples 3 and 5 andthe tubing 1, the rod 28 is moved to carry with it the rod 25, until the curved portion of the cage 23 abuts the trigger ends 31 of the catches 30, thus moving the same outwardly and alining the outer portion of the plunger 18 so as to hold thetrigger ends 31 out of the slots 32 so that when the cage 23 engages the under side of the lifting nut 26, the complete liner sleeve with the plunger 18 and standing valve 17 may be removed bodily through the tubing 1 and exteriorly of the casing to permit of the renewal or repair thereof.

The liner sleeve 12 is provided with a plurality of apertures 33 in the wall thereof to provide ports of egress for the /oil during its passage-upwardly through the tubing 1.

From the foregoing description, taken in connect-ion with the drawings it is evident that with a liner sleeve constructed according to the present invention, that the' standing valve 17 will be bodily removable and insrtible within the tubing simultaneously with the liner sleeve and the plunger 18, and thus the necessity for performing numerous operations, as is the present practice in the removal and insertion of the wearing partsv of the pump, is overcomee By providing the spring catches 30, it is evident that the sleeve 11 is held locked and seated, but that the too `far upward movement of the casing 23 and. plunger 18 will automatically release the liner sleeve so as to permit of the ready withdrawal of the same with the standing valve as heretofore (described.

What, is claimed is:

1., A pump,having a plunger receiving barrel, a liner sleeve mounted in the barrel, and having lock receiving apertures in its walls, two locking springs for the sleeve secured to the barrel and having projections upon their free ends for insertion through the apertures of the sleeve, a standing valve mounted in the lower end of and carried by the liner sleeve, a plunger mounted in the liner sleeve and capable of engaging the project-ions of the springs to release the springs and bodily carry the liner sleeve and standing valve therewith when lifted out of the barrel, and co-acting means carried by' the plunger and the standing valve to insure the removal of the standing valve with the plunger.

2. A pump, having a plunger receiving barrel, a liner sleeve mounted therein and having diametrically disposed slots nearits upper end, a plurality of springs having their lower ends connected to the barrel, the upper free ends being provided with projections to, extend through the slots to retain the liner sleeve seated within the barrel, a standing valve mounted in the lower end thereof and carried by. the liner sleeve, a plunger mounted for reciprocation within the liner sleeve, a sucker rod for actuating the plunger, coacting means carried by the plunger and the standing valve to retain .the standing valve relatively to.

the plunger and to permit the proper reciprocatory movement of the plunger, said plunger being so constructed that when moved abnormally upward it engages and moves outwardly the projections of lthe springs to release the springs from the liner sleeve and permit the bodily removal of the liner sleeve and standing valve through the' medium of the plunger and sucker rod., v

1n testimony that I claim the foregoing as my own, l have hereto aliixed by signature in the presence of two witnesses. Y

Maan LANG.

Witnesses 1. A. THARP, H. H. FENNEMAN.' 

